Have no idea what I am doing and completely overwhelmed....sorry this is long.

[Watermom]

Just plain ole bleach! Walmart's generic is fine and is 8.25% sodium hypochlorite. Liquid chlorine that you can buy at the pool store is the same thing, only stronger concentration --- usually 10 or 12.5% sodium hypochlorite.

What are the ingredients in the Shockwave? Be specific.

[Jenne03]

It is Calcium hypochlorite 68%
other ingredients 32%
Total 100%

[BigDave]

Cal-hypo is fine so long as the pH is in range and the Calcium Hardness isn't high (back to accurate testing). Each pound of 68% cal-hypo adds about 3ppm FC (Free Chlorine) to your pool and 2ppm CH. Cal-hypo can react energetically with stabilzed chlorine so do not add it to the skimmer if you have used trichlor tabs or dichlor granules in the skimmer.

I don't know enough yet to talk about the SWCG setting. We can start to measure chlorine consumption after you get the K-2006 (you have ordered one, yes?).